no. they came from south america.
Sunflowers are native to North America
North Dakota
Sunflowers are native to North and South America; they've "always" been here.
From North America
Sunflowers come from North and Central America.
Eurasia and North America
North, South, and Central America.
North America
north america
Europe and North America basically
The Hudson Bay is not an area where the maritime tropical air masses that affect north America originate.
In North America with the Indians